Restore Full Electrical Function to Your GM Truck or SUV
Are you dealing with baffling electrical issues in your 2002 Cadillac Escalade EXT? Flickering interior lights, power windows that won’t cooperate, a security light that stays on, or even an intermittent no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central computer for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. This isn’t just an inconvenience; it can affect your vehicle’s security and daily reliability.
This is a direct-fit replacement Body Control Module, part number 15095335, for your truck. The biggest challenge with BCM replacement has always been the expensive and time-consuming trip to the dealership for programming. We solve that problem. Before we ship this module, we will flash it with the latest official GM software, programmed specifically to your vehicle’s VIN. This ensures that when it arrives, it’s ready for installation, saving you time and hundreds of dollars in dealer fees. Simply provide your VIN at checkout, and we’ll handle the rest.
From the Diagnostic Bay
I remember a 2002 Tahoe that came into my shop a few years back. The owner had replaced the battery and alternator, but the truck would still intermittently refuse to start, and the radio would cut out randomly. He was at his wit’s end. After hooking up my scan tool, I noticed communication errors with multiple systems, all routing through the BCM. Instead of chasing individual ‘gremlins,’ we went to the source. After installing a VIN-programmed BCM like this one, every single one of his electrical issues vanished. It’s a perfect example of how one central component can restore total vehicle health.
Is Your Truck Showing These BCM Failure Signs?
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ The security or anti-theft light stays illuminated, preventing the engine from starting.
- ✔ Interior or exterior lights flicker, stay on, or don’t work correctly.
- ✔ The radio or instrument cluster loses power or behaves erratically.
- ✔ Your key fob has stopped working even with a new battery.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication with various modules (U-codes) are present.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On these GM models, the BCM is typically found under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove the bolts or clips holding the module in place and take it out.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location and securely fasten it. Reconnect all electrical connectors, ensuring they click firmly into place.
- ✔ Reconnect Power: Reattach the negative battery terminal. The vehicle is now ready for the final steps.
Post-Installation Procedures: What to Expect
Because this 2002 Escalade EXT BCM communicates with multiple safety systems, a couple of quick relearn procedures may be necessary after installation. This is standard for this repair.
- Airbag System Sync: If your airbag warning light is on after installation, the BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). This is done via a ‘Setup SDM Primary Key in BCM’ procedure using a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure your brake lights and traction control system function correctly, a brake pedal position sensor relearn might be required. This can also be performed with a capable diagnostic tool.
Disclaimer: Specific procedural steps can vary. We always recommend consulting a factory service manual or a certified technician if you are unsure.
Verified Fitment For These GM Models
This module is a guaranteed fit for the following vehicles. It is a direct replacement for service numbers 15063577, 15081857, 19208544, 15095335, DKAJ, and DPNW.
ESCALADE 02 Body Control (BCM); (under steering column), 4×4
ESCALADE EXT 02 Body Control (BCM); (under steering column)
Chevrolet:
AVALANCHE 1500 02 Body Control (BCM); (under steering column), 4×4
SUBURBAN 1500 02 Body Control (BCM); (under steering column), 4×4
TAHOE 02 Body Control (BCM); (under steering column), 4×4
GMC:
YUKON 02 Body Control (BCM); (under steering column), 4×4
YUKON XL 1500 02 Body Control (BCM); (under steering column), 4×4
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN during checkout, and the module will arrive with the latest GM software matched to your specific vehicle.
Is this a plug-and-play part?
Mostly, yes. The module is pre-programmed, so the main installation is plug-and-play. However, as noted, some vehicles may require a simple ‘relearn’ or ‘sync’ procedure for the airbag or brake systems using a pro-level scan tool.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Will this 2002 Escalade EXT BCM fix my no-start problem?
If your no-start issue is caused by the factory anti-theft system (Passlock) being triggered by a faulty BCM, then yes, this part is the correct fix. It’s a very common symptom of BCM failure on these models.
What information do you need from me?
All we need is your vehicle’s 17-digit Vehicle Identification Number (VIN). You can typically find this on your driver’s side dashboard (visible through the windshield) or on your vehicle’s registration/insurance documents.